Title (en)

Structure to improve the reliability of organic and polymer light emitting devices and method for producing same

Title (de)

Struktur zur Verbesserung der Zuverlässigkeit von organischen und polymeren elektrolumineszenten Vorrichtungen und Herstellungsverfahren

Title (fr)

Structure pour améliorer la fiabilité des dispositifs électroluminescents organiques et polymères et méthode de fabrication

Publication

EP 1003229 A1 20000524 (EN)

Application

EP 99116362 A 19990819

Priority

US 19701298 A 19981120

Abstract (en)

An organic light emitting device (100, 110, 120) having a process compatible current self-limiting (CSL) structure (105, 115, 125) applied in the vicinity of an electrode (102, 112, 122, 108, 118, 128) of the device prevents the occurrence of high current flow in the vicinity of a short (134) within the device. Should a short (134) occur, the CSL structure (105, 115, 125) becomes resistive, or non-conducting in the vicinity of the short (134), thus preventing the occurrence of "runaway" current in the vicinity of the short (134). By limiting the current flow between conductors in the device, the non-emissive areas of the device can be minimized, thus improving the overall reliability of the device. <IMAGE>

IPC 1-7

H01L 51/20

IPC 8 full level

H01L 51/50 (2006.01); H01L 51/52 (2006.01); H05B 33/12 (2006.01); H05B 33/14 (2006.01); H05B 33/22 (2006.01)

CPC (source: EP US)

H10K 50/00 (2023.02 - EP US); H10K 50/805 (2023.02 - EP US); H10K 71/861 (2023.02 - EP US); H10K 2102/341 (2023.02 - EP US)

Citation (search report)

• [X] US 4647813 A 19870303 - KITABAYASHI MOTOI [JP], et al
• [A] US 5739545 A 19980414 - GUHA SUPRATIK [US], et al

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1003229 A1 20000524; EP 1003229 B1 20120704; JP 2000164357 A 20000616; JP 4451522 B2 20100414; US 6713955 B1 20040330

DOCDB simple family (application)

EP 99116362 A 19990819; JP 33147699 A 19991122; US 19701298 A 19981120